Enum syntax::feature_gate::AttributeGate

pub enum AttributeGate {
    Gated(Stability, &'static str, &'static str, fn(_: &Features) -> bool),
    Ungated,
}

🔬 This is a nightly-only experimental API. (rustc_private)

Variants

Gated(Stability, &'static str, &'static str, fn(_: &Features) -> bool)

🔬 This is a nightly-only experimental API. (rustc_private)

Is gated by a given feature gate, reason and function to check if enabled

Ungated

🔬 This is a nightly-only experimental API. (rustc_private)

Ungated attribute, can be used on all release channels

Trait Implementations

impl Debug for AttributeGate

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.